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TestMu AI (Formerly LambdaTest)

Score8.9 out of 10

225 Reviews and Ratings

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What is TestMu AI (Formerly LambdaTest)?

TestMu AI (Formerly LambdaTest) is a Full-Stack Quality Engineering platform that empowers teams to test intelligently and ship faster. Engineered for scale, it offers end-to-end AI agents to plan, author, execute, and analyze software quality. The platform enables testing of web, mobile, and enterprise applications at any scale across real devices, real browsers, and custom real-world environments.

Categories & Use Cases

Media

Screenshot of An automated screenshot.
Screenshot of Mobile-browser-testing
Screenshot of Automation testing on Lambdatest
Screenshot of Some of the available integrations.
Screenshot of Real-time testing
Screenshot of Responsive testing
Screenshot of Screenshot testing
Screenshot of Smart testing
Screenshot of Local host testing
Screenshot of LT Browser

1 / 10

Screenshot of An automated screenshot.

Who Buys & Uses TestMu AI (Formerly LambdaTest)

TestMu AI (Formerly LambdaTest) Reviews

What users are saying about TestMu AI (Formerly LambdaTest).
View all TestMu AI (Formerly LambdaTest) reviews

Pros

  • Comprehensive cross-browser and cross-device testing capabilities
  • Extensive availability of real and virtual devices for testing
  • Integrated automation features for running test scripts (Selenium, Appium)

Cons

  • Performance and speed issues, including lag and slow boot times
  • Inconsistent performance, particularly on iOS devices or with lower bandwidth
  • Outdated or insufficiently detailed documentation for automation features

Better pricing and it would be the best out there

Incentivized
Felipe LisboaView profile
QA in Quality Assurance at Metha Energia (11-50 employees)

Use Cases and Deployment Scope

We use TestMu AI (Formerly LambdaTest) to run our front end end to end test with automation and help with AI, optimizing our pipeline, and make regression tests faster, but we have to make adjustments when AI give us prompts that are not exactly what we want to test, but anyway it does give us a broader look into what we we're lacking on tests

Pros

  • AI test prompts
  • Pipeline care
  • Front end test automation

Cons

  • pricing

Return on Investment

  • made our development workflow faster
  • made our quality assurance perception better

Usability

Alternatives Considered

BrowserStack

Other Software Used

BrowserStack

LambdaTest Review

Incentivized
Verified User
Employee in Engineering (501-1000 employees)

Use Cases and Deployment Scope

Me and my team has been using LambdaTest actively for testing purposes on different mobile emulators and simulators and we really like the services offered by the LambdaTest team

Pros

  • Unit test cases were easy to handle
  • Workflow was easy to maintain and overlook
  • Very helpful in regression testing

Cons

  • Sessions could be run faster
  • Make CI/CD little more faster

Return on Investment

  • I was able to automate the tests
  • I was able to get so many devices to test and run

Usability

Alternatives Considered

BrowserStack

TestMu AI A powerful platform for modern Software Testing

Incentivized
Verified User
Project Manager in Information Technology (1-10 employees)

Use Cases and Deployment Scope

I needed to test my site if its seamless on all devices. I tested it on multiple devices such as mobile, tablets, iphones, browsers to check the sites responsiveness and if its breaking or not on any device. it was very easy to test and select devices. the business needed to have a seamless and responsive website so that it would not create any problem for the users, so testing it on multiple devices was a must.

Pros

  • Testing of website on multiple devices, so multiple devices support is there
  • Ease of support for selecting devices and even iphones are supported
  • was able to inspect the failures that i got
  • able to record and screenshot the pages and errors

Cons

  • well i didnt find anything or any features which were hard to use cause it is easy to use and understand even for a new comer

Return on Investment

  • Helped me make responsive site, mostly all the impacts i had are positive
  • testing on multiple devices got a lot easier

Usability

Alternatives Considered

BrowserStack

Other Software Used

BrowserStack

Beyond Scripts Why TestMu AI Is the New Gold Standard for QA Automation in 2026

Verified User
Engineer in Quality Assurance (51-200 employees)

Use Cases and Deployment Scope

In our case, we use TestMu to test a mobile app on different real devices. This allows us to assess performance across the major brands of mobile devices. This is the main reason: functional testing is an important part of detecting problems or errors in a workflow that could impact our operations. By being able to test on different devices without location restrictions and leveraging both Android and iOS operating systems, we can ensure the proper functioning of our app.

Pros

  • app debugging
  • functional mobile test

Cons

  • at the moment all works for us

Return on Investment

  • less bugs on prod enviroment equal to Less impact on the development budget.
  • Shorter feedback cycle: Thanks to its HyperExecute technology, tests can run up to 70% faster than on traditional clouds.
  • Testing on real mobile devices ensures flawless performance in iOS or Android.

Usability

Other Software Used

Cursor, GitHub Copilot

LambdaTest review

Incentivized
emma buttery
SDET in Quality Assurance at Direct ferries (51-200 employees)

Use Cases and Deployment Scope

Using LambdaTest to ensure our website and native app work with multiple devices as well as running our appium automation for the app on actual devices remotely. We had a trial for web automation (which we decided not to go ahead with at the moment) and also smart UI for more continuous testing on a storybook project.

Pros

  • UI is very nice
  • Customer support is very good when needed
  • works reliably

Cons

  • Some documentation can be confusing
  • Some documentation is also out of date

Return on Investment

  • N/A

Usability

Alternatives Considered

BrowserStack

TestMu AI (Formerly LambdaTest) Alternatives

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